A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6610-00-639-3615
NSN 5935-01-064-4195
NSN 5915-00-387-2333
NSN 6220-01-409-1585
NSN 6135-01-451-2120
NSN 6110-01-133-3336
NSN 5895-00-174-4442
NSN 5905-00-289-9898
NSN 5998-01-058-0102
NSN 5965-01-157-6089
NSN 6240-00-130-5643
NSN 5998-00-189-0761